Re: functional programming
- To: mathgroup at smc.vnet.net
- Subject: [mg75177] Re: functional programming
- From: dh <dh at metrohm.ch>
- Date: Thu, 19 Apr 2007 04:36:08 -0400 (EDT)
- References: <f04n9k$8ec$1@smc.vnet.net>
Hi Raj,
you can not use 2 pure function in abreviated form (#&)in the same
expression because then it is not clear to which function the argument #
belongs. Therefore, for at least one function you must use the verbatime
form Function[..,..]:
var=1280;
Select[{{35,38},{2064,2068},{2182,2183}},Function[x,#-1281<=x[[2]]<=1280]]&/@
{1280,2000}
hope this helps, Daniel
Raj wrote:
> Could somebody tell me how to do this
>
> tsome = {{35, 38}, {2064, 2068}, {2182, 2183}};
> Select[tsome, 1280 - 1281 =E2=89=A4 #[[2]] =E2=89=A4 1280 &]
>
> Now instead of using 1280 in the Select function, I want to use a
> variable and get the values as this variable varies. I know that a
> Table can be used and the value of the variable can be varied. But if
> possible, I want to do it in a "Truly functional way".
>
> for example something like
>
> Select[tsom, var-1281<=#[[2]]<=1280&]&/@{list of values over which the
> variable varies}
>
> Thanks,
>
> Raj
>
>